I know I already did an “APAR Friday” post for today, that’s why the title has a 2 in it. The other reason for a second post is that I came across something interesting tonight.

I try to scan as many closed APARs as possible to find better descriptions how how things in DB2 work, new, changed, or deleted DSNZPARM keywords, optimization improvements, and HIPERs. As I come across stuff I think may of of interest, it ends up here sometimes with a detailed description and others merely a rehash of the APAR cover.

I’ve always been partial to DB2 recovery stuff. So this evening when I came across this closed APAR that corrects a potential issue with a RECOVER... TOLOGRBA or RECOVER... TOLOGPOINT with the BACKOUT YES option. It seems it’s possible for backout to a prior point in time doesn’t actually backout all data or index entries associated with committed or inflight URs.

It appears that all works correctly if the BACKOUT YES keyword is not specified.

If you have ever had to run a recovery job in production, I think you will quickly understand why this APAR is marked HIPER. This is one you are definitely going to want to take look at and more than likely add to your fix list.

APAR PM55597closed on January 21, 2012 and as I just mentioned, it is marked as a HIPER. Because this APAR just recently closed, there is not a superseding PTF number listed.

P.S. OK, I've brought this silly post script thing back again… if you like this blog and find it informative, entertaining, or even useful, why not click on the subscription icon in the top right-hand corner (it looks a lot like ) so you are automatically notified of every post. Maybe you could even recommend this blog to a friend? Every reader I get helps…(smile)…

And, as usual, please remember: "These comments are my own personal opinions only and do not necessarily reflect the positions or opinions of my employer (IBM) or their affiliates. All comments are based upon my current knowledge and my own personal experiences. You should conduct independent tests to verify the validity of any statements made in this blog before basing any decisions upon those statements. In addition, any views or opinions expressed by visitors to this blog are theirs and do not necessarily reflect mine."

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Welcome to all things DB2 for z/OS. This is your one stop, your only stop, and your final stop to find out all you'll ever want to ...
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Welcome to all things DB2 for z/OS. This is your one stop, your only stop, and your final stop to find out all you'll ever want to know about DB2 for z/OS. We'll be discussing how to upgrade to the latest DB2 version, have detailed "how it works" discussions, some performance tips, maintenance alerts, baby updates, with a few guest posts thrown in occasionally. In addition, you'll find all of the latest DB2 news and gossip, arrival notifications of the latest articles, books, seminars, and teleconferences, along with details on all of the major conferences. I'll occasionally be throwing in a post covering our z/OS operating system and our System z hardware. Plus, there will always be something entertaining posted every once in a while. This is the place you'll find just about anything you need to know to stay current with DB2 for z/OS, z/OS, or System z. This is also the place to get that little bit of lite reading each morning to start your day off on the right foot.
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Statement About Content Ownership:The contents of this blog reflect my own personal opinions only and do not necessarily reflect the positions or opinions of my employer (IBM) or their affiliates. All content is based upon my current knowledge and my own personal experiences. You should conduct independent tests to verify the validity of any statements made in this blog before basing any decisions upon those statements. In addition, any views or opinions expressed by visitors to this blog are theirs and do not necessarily reflect mine.